21153360

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{1663}}^1$

素因数の和:1732

約数の個数: 80

約数和(自身を含む): 66852864

約数和(自身を除く): 45699504

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 53, 60, 80, 106, 120, 159, 212, 240, 265, 318, 424, 530, 636, 795, 848, 1060, 1272, 1590, 1663, 2120, 2544, 3180, 3326, 4240, 4989, 6360, 6652, 8315, 9978, 12720, 13304, 16630, 19956, 24945, 26608, 33260, 39912, 49890, 66520, 79824, 88139, 99780, 133040, 176278, 199560, 264417, 352556, 399120, 440695, 528834, 705112, 881390, 1057668, 1322085, 1410224, 1762780, 2115336, 2644170, 3525560, 4230672, 5288340, 7051120, 10576680, 21153360]

約数ペア:

[(1, 21153360), (2, 10576680), (3, 7051120), (4, 5288340), (5, 4230672), (6, 3525560), (8, 2644170), (10, 2115336), (12, 1762780), (15, 1410224), (16, 1322085), (20, 1057668), (24, 881390), (30, 705112), (40, 528834), (48, 440695), (53, 399120), (60, 352556), (80, 264417), (106, 199560), (120, 176278), (159, 133040), (212, 99780), (240, 88139), (265, 79824), (318, 66520), (424, 49890), (530, 39912), (636, 33260), (795, 26608), (848, 24945), (1060, 19956), (1272, 16630), (1590, 13304), (1663, 12720), (2120, 9978), (2544, 8315), (3180, 6652), (3326, 6360), (4240, 4989)]